12-year-old Devonte Hart grabbed attention in 2015 in a viral photo dubbed the "hug felt 'round the world."br In The photo, the black youth is clinging to the shoulders of a white police officer at a Portland, Oregon, protest. The protest followed a grand jury decision not to indict a white police officer in the killing of Michael Brown, a black teenager in Ferguson, Missouri. Now, police in Northern California say Devonte and his family are at the center of a mysterious tragedy.